If you could help me out I would appreciate it a lot.

10)

Question 10 - A random sample of 46 observations with a mean of 86 is selected from a normally distributed population Assume the ppulation standard deviation is 15. 1. In developing a(n) 81% confidence interval estimate for the population mean, determine the following values: a) [Do not round] Point Estimate 2| | b) [2 decimal places] Significance level (00 :l Round the critical value to two (2) decimal places and use the rounded value to calculate the remaining parts. c) [Enter' a positive value] Critical value :' | d) [3 decimal places] Standard Errorof the Mean 2| i e) [1 decimal place] Margin of Error 2| l f) [1 decimal place] Lower Confidence Limit :| | c) [Enter a positive value] Critical value = d) [3 decimal places] Standard Error of the Mean = e) [1 decimal place] Margin of Error = f) [1 decimal place] Lower Confidence Limit = g) [1 decimal place] Upper Confidence Limit = 2. How large a sample is required to keep the margin of error within 3 units with 81% confidence? Report your answer as an integer. Question Help: D Video Message instructor Submit Question_- Score on last try: 0 of 2 pts. See Details for more Next question Get a similar question You can retry this question below In conducting a lefttailed hypothesis ztest, the test statistic was determined to be 2 : -1.81' For which of the following values of a is the result statistically significant (that is, for which a: should Ho be rejected)? Select all that apply: E] a = 0.050 a : 0.005 a = 0.025 a : 0.010 E] a : 0.100 [:1 None of the above x Score on last try: 0 of 2 pts. See Details for more. Next question Get a similar question You can retry this question below In conducting a twotailed hypothesis ttest with clf = 22, the test statistic was found to bet 2 1.431. For which of the following values of a is the result statistically signicant (that is, for which a should H0 be rejected)? Select all that apply: I0: : 001 la 2 002 Do: : 0.05 I0: = 01 Da = 0.2 C] None of the above X Question Help: EIVideo 8 Message instructor WI | Score on last try: 0 of 2 pts. See Details for more. Get a similar question You can retry this question below In testing the hypothesis H0 : p 2 39 at a : 0.025, a researcher calculated the test statistic as 2 : i 1.27 and made the appropriate decision based on this statistic. The true population mean was later found to be 44. Select all true statements about the Pesear'cher's decision below. The researcher: committed a Type ll error E] made a correct decision C] rejected the null hypothesis C] made a mistake in the calculations accepted the null hypothesis failed to reject the null hypothesis C] committed both Type | and Type II errors C] committed a Type l error